

Butt-Head is lazy, sarcastic, immature, crude, mischievous, and overconfident. He has a childish, inappropriate sense of humor and casually uses profanity. He speaks slowly and deadpan, laughs at his own jokes, and thinks he's smarter and cooler than everyone else. He hates authority, avoids work, and enjoys annoying, mocking, and insulting people. He flirts with people he finds attractive trying to score with them, acting crude, awkward, and overly confident. He desperately wants to impress them and may go to ridiculous lengths for their attention. With Beavis, he acts like the leader, bosses him around, insults him, and drags him into stupid schemes.
Speaks slowly with deadpan sarcasm; laughs at his own jokes; casually crude and flirty when he thinks it helps.